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Diffstat (limited to 'Frameworks/MCPKit/MCPEntrepriseKit/MCPAttribute.m')
| -rw-r--r-- | Frameworks/MCPKit/MCPEntrepriseKit/MCPAttribute.m | 466 |
1 files changed, 466 insertions, 0 deletions
diff --git a/Frameworks/MCPKit/MCPEntrepriseKit/MCPAttribute.m b/Frameworks/MCPKit/MCPEntrepriseKit/MCPAttribute.m new file mode 100644 index 00000000..34b50284 --- /dev/null +++ b/Frameworks/MCPKit/MCPEntrepriseKit/MCPAttribute.m @@ -0,0 +1,466 @@ +// +// $Id: MCPAttribute.m 927 2009-06-24 10:53:07Z stuart02 $ +// +// MCPAttribute.m +// MCPkit +// +// Created by Serge Cohen (serge.cohen@m4x.org) on 09/08/04. +// Copyright (c) 2004 Serge Cohen. All rights reserved. +// +// Forked by the Sequel Pro team (sequelpro.com), April 2009 +// +// This program is free software; you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation; either version 2 of the License, or +// (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program; if not, write to the Free Software +// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +// +// More info at <http://mysql-cocoa.sourceforge.net/> +// More info at <http://code.google.com/p/sequel-pro/> + +#import "MCPAttribute.h" + +#import "MCPEntrepriseNotifications.h" + +#import "MCPModel.h" +#import "MCPClassDescription.h" +#import "MCPRelation.h" +#import "MCPJoin.h" + +static NSArray *MCPRecognisedInternalType; + +@interface MCPAttribute (Private) + +- (void)setValueClassName:(NSString *) iClassName; + +@end + +@implementation MCPAttribute + +#pragma mark Class methods ++ (void) initialize +{ + if (self == [MCPAttribute class]) { + [self setVersion:010101]; // Ma.Mi.Re -> MaMiRe + MCPRecognisedInternalType = [[NSArray alloc] initWithObjects:@"NSCalendarDate", @"NSData", @"NSNumber", @"NSString", nil]; + [self setKeys:[NSArray arrayWithObject:@"internalType"] triggerChangeNotificationsForDependentKey:@"valueClassName"]; + [self setKeys:[NSArray arrayWithObject:@"valueClassName"] triggerChangeNotificationsForDependentKey:@"internalType"]; + } + return; +} + + +#pragma mark Life cycle +- (id) initForClassDescription:(MCPClassDescription *) iClassDescription withName:(NSString *) iName +{ + self = [super init]; + { + classDescription = iClassDescription; + [self setName:iName]; +// relations = (NSMutableArray *)(CFArrayCreateMutable (kCFAllocatorDefault, 0, NULL)); + joins = [[NSMutableArray alloc] init]; + } + return self; +} + +- (void) dealloc +{ +// NSArray *theRelations; +// unsigned int i; + + [name release]; + [internalType release]; + [externalName release]; + [externalType release]; + [defaultValue release]; +/* + while ([relations count]) { + [(MCPRelation *)[relations objectAtIndex:0] unjoinAttribute:self]; + } +// By now relation should be empty anyway... + [relations release]; + */ + while ([joins count]) { + [[self objectInJoinsAtIndex:0] invalidate]; + } + // By now the joins array should be empty + [joins release]; + [super dealloc]; +} + + +#pragma mark NSCoding protocol +- (id) initWithCoder:(NSCoder *) decoder +{ + self = [super init]; + if ((self) && ([decoder allowsKeyedCoding])) { + NSString *theClassName = [decoder decodeObjectForKey:@"MCPvalueClassName"]; + + classDescription = [decoder decodeObjectForKey:@"MCPclassDescription"]; + [self setName:[decoder decodeObjectForKey:@"MCPname"]]; + if (theClassName) { + [self setValueClass:NSClassFromString(theClassName)]; + } + [self setInternalType:[decoder decodeObjectForKey:@"MCPinternalType"]]; + [self setExternalName:[decoder decodeObjectForKey:@"MCPexternalName"]]; + [self setExternalType:[decoder decodeObjectForKey:@"MCPexternalType"]]; + [self setWidth:(unsigned int)[decoder decodeInt32ForKey:@"MCPwidth"]]; + [self setAllowsNull:[decoder decodeBoolForKey:@"MCPallowsNull"]]; + [self setAutoGenerated:[decoder decodeBoolForKey:@"MCPautoGenerated"]]; + [self setIsPartOfKey:[decoder decodeBoolForKey:@"MCPisPartOfKey"]]; + [self setIsPartOfIdentity:[decoder decodeBoolForKey:@"MCPisPartOfIdentity"]]; + [self setHasAccessor:[decoder decodeBoolForKey:@"MCPhasAccessor"]]; + [self setDefaultValue:[decoder decodeObjectForKey:@"MCPdefaultValue"]]; +// Not sure that the next line is working (getting an array holding weak references), hence doing the thing expelcitly: +// relations = [[decoder decodeObjectForKey:@"MCPrelations"] retain]; +// relations = (NSMutableArray *)(CFArrayCreateMutable (kCFAllocatorDefault, 0, NULL)); +// [relations addObjectsFromArray:[decoder decodeObjectForKey:@"MCPrelations"]]; + joins = [[NSMutableArray alloc] init]; // Will be filled in when the relations are read in. + } + else { + NSLog(@"For some reason, unable to decode MCPAttribute from the coder!!!"); + } +// NSLog(@"MAKING a new object : %@", self); + return self; +} + +- (void) encodeWithCoder:(NSCoder *) encoder +{ + NSString *theValueClassName; + + if (! [encoder allowsKeyedCoding]) { + NSLog(@"In MCPAttribute -encodeWithCoder : Unable to encode to a non-keyed encoder!!, will not perform encoding!!"); + return; + } +// theValueClassName = (valueClass) ? [valueClass className] : nil; + theValueClassName = (valueClass) ? NSStringFromClass(valueClass) : nil; + [encoder encodeObject:[self classDescription] forKey:@"MCPclassDescription"]; + [encoder encodeObject:[self name] forKey:@"MCPname"]; + if (theValueClassName) { + [encoder encodeObject:theValueClassName forKey:@"MCPvalueClassName"]; + } + [encoder encodeObject:[self internalType] forKey:@"MCPinternalType"]; + [encoder encodeObject:[self externalName] forKey:@"MCPexternalName"]; + [encoder encodeObject:[self externalType] forKey:@"MCPexternalType"]; + [encoder encodeInt32:(int32_t)[self width] forKey:@"MCPwidth"]; + [encoder encodeBool:[self allowsNull] forKey:@"MCPallowsNull"]; + [encoder encodeBool:[self autoGenerated] forKey:@"MCPautoGenerated"]; + [encoder encodeBool:[self isPartOfKey] forKey:@"MCPisPartOfKey"]; + [encoder encodeBool:[self isPartOfIdentity] forKey:@"MCPisPartOfIdentity"]; + [encoder encodeBool:[self hasAccessor] forKey:@"MCPhasAccessor"]; + [encoder encodeObject:[self defaultValue] forKey:@"MCPdefaultValue"]; +// [encoder encodeObject:relations forKey:@"MCPrelation"]; + // We don't have to save the joins here ... the joins are saving there attributes. + // The links are recreated when the joins are decoded. +} + +#pragma mark Setters +- (void) setName:(NSString *) iName +{ + if (iName != name) { + [name release]; + name = [iName retain]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPModelChangedNotification object:[classDescription model]]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPClassDescriptionChangedNotification object:classDescription]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPAttributeChangedNotification object:self]; + } +} + +- (void) setValueClass:(Class) iValueClass +{ + if (iValueClass != valueClass) { + valueClass = iValueClass; + if (valueClass) { // Not nil : set the internalType accrodingly. + // [internalType release]; + // internalType = [[valueClass className] copy]; +// [self setValue:[NSString stringWithString:[valueClass className]] forKey:@"internalType"]; + [self setValue:[NSString stringWithString:NSStringFromClass(valueClass)] forKey:@"internalType"]; + } + [[NSNotificationCenter defaultCenter] postNotificationName:MCPModelChangedNotification object:[classDescription model]]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPClassDescriptionChangedNotification object:classDescription]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPAttributeChangedNotification object:self]; + } +} + +- (void) setInternalType:(NSString *) iInternalType +{ + if (iInternalType != internalType) { + [internalType release]; + internalType = [iInternalType retain]; + if ([MCPRecognisedInternalType containsObject:internalType]) { + [self setValueClass:NSClassFromString(internalType)]; +// By itself does NOT provide observers the update. +// but see setKeys:triggerChangeNotificationsForDependentKey... (in +initialize). + } + else { + [self setValueClass:nil]; + } + [[NSNotificationCenter defaultCenter] postNotificationName:MCPModelChangedNotification object:[classDescription model]]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPClassDescriptionChangedNotification object:classDescription]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPAttributeChangedNotification object:self]; + } +} + +- (void) setExternalType:(NSString *) iExternalType +{ + if (iExternalType != externalType) { + [externalType release]; + externalType = [iExternalType retain]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPModelChangedNotification object:[classDescription model]]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPClassDescriptionChangedNotification object:classDescription]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPAttributeChangedNotification object:self]; + } +} + +- (void) setExternalName:(NSString *) iExternalName +{ + if (iExternalName != externalName) { + [externalName release]; + externalName = [iExternalName retain]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPModelChangedNotification object:[classDescription model]]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPClassDescriptionChangedNotification object:classDescription]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPAttributeChangedNotification object:self]; + } +} + +- (void) setWidth:(unsigned int) iWidth +{ + if (iWidth != width) { + width = iWidth; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPModelChangedNotification object:[classDescription model]]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPClassDescriptionChangedNotification object:classDescription]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPAttributeChangedNotification object:self]; + } +} + +- (void) setAllowsNull:(BOOL) iAllowsNull +{ + if (iAllowsNull != allowsNull) { + allowsNull = iAllowsNull; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPModelChangedNotification object:[classDescription model]]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPClassDescriptionChangedNotification object:classDescription]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPAttributeChangedNotification object:self]; + } +} + +- (void) setAutoGenerated:(BOOL) iAutoGenerated +{ + if (iAutoGenerated != autoGenerated) { + autoGenerated = iAutoGenerated; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPModelChangedNotification object:[classDescription model]]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPClassDescriptionChangedNotification object:classDescription]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPAttributeChangedNotification object:self]; + } +} + +- (void) setIsPartOfKey:(BOOL) iIsPartOfKey +{ + if (iIsPartOfKey != isPartOfKey) { + isPartOfKey = iIsPartOfKey; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPModelChangedNotification object:[classDescription model]]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPClassDescriptionChangedNotification object:classDescription]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPAttributeChangedNotification object:self]; + } +} + +- (void) setIsPartOfIdentity:(BOOL) iIsPartOfIdentity +{ + if (iIsPartOfIdentity != isPartOfIdentity) { + isPartOfIdentity = iIsPartOfIdentity; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPModelChangedNotification object:[classDescription model]]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPClassDescriptionChangedNotification object:classDescription]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPAttributeChangedNotification object:self]; + } +} + +- (void) setHasAccessor:(BOOL) iHasAccessor +{ + if (iHasAccessor != hasAccessor) { + hasAccessor = iHasAccessor; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPModelChangedNotification object:[classDescription model]]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPClassDescriptionChangedNotification object:classDescription]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPAttributeChangedNotification object:self]; + } +} + +- (void) setDefaultValue:(id) iDefaultValue +{ + if (iDefaultValue != defaultValue) { + [defaultValue release]; + defaultValue = [iDefaultValue retain]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPModelChangedNotification object:[classDescription model]]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPClassDescriptionChangedNotification object:classDescription]; + [[NSNotificationCenter defaultCenter] postNotificationName:MCPAttributeChangedNotification object:self]; + } +} + +- (void) insertObject:(MCPJoin *) iJoin inJoinsAtIndex:(unsigned int) index +{ + [joins insertObject:iJoin atIndex:index]; +} + +- (void) removeObjectFromJoinsAtIndex:(unsigned int) index +{ + [joins removeObjectAtIndex:index]; +} + +/* +- (void) addRelation:(MCPRelation *) iRelation +{ +// Following implementation make sure that a given relation is only added once... but I don't see the reason for that to be true. + /* if (NSNotFound == [relations indexOfObjectIdenticalTo:iRelation]) { + [relations addObject:iRelation]; + } + *//* + [relations addObject:iRelation]; +} + +- (void) removeRelation:(MCPRelation *) iRelation +{ +// Following implementation needs only one reference to a given relation to be working properly (not true) +// [relations removeObjectIdenticalTo:iRelation]; + unsigned int i; + + i = [relations indexOfObjectIdenticalTo:iRelation]; + if (NSNotFound != i) { + [relations removeObjectAtIndex:i]; + } +// If the relation is there more than once, remove it only once. +} +*/ + +#pragma mark Getters +- (MCPClassDescription *) classDescription +{ + return classDescription; +} + +- (NSString *) name +{ + return name; +} + +- (Class) valueClass +{ + return valueClass; +} + +- (NSString *) valueClassName +{ + return NSStringFromClass(valueClass); +} + +- (NSString *) internalType +{ + return internalType; +} + +- (NSString *) externalName +{ + return externalName; +} + +- (NSString *) externalType +{ + return externalType; +} + +- (unsigned int) width +{ + return width; +} + +- (BOOL) allowsNull +{ + return allowsNull; +} + +- (BOOL) autoGenerated +{ + return autoGenerated; +} + +- (BOOL) isPartOfKey +{ + return isPartOfKey; +} + +- (BOOL) isPartOfIdentity +{ + return isPartOfIdentity; +} + +- (BOOL) hasAccessor +{ + return hasAccessor; +} + +- (id) defaultValue +{ + return defaultValue; +} + +- (unsigned int) countOfJoins +{ + return [joins count]; +} + +- (MCPJoin *) objectInJoinsAtIndex:(unsigned int) index +{ + return (MCPJoin *)((NSNotFound != index) ? [joins objectAtIndex:index] : nil); +} + +- (unsigned int) indexOfJoinIdenticalTo:(id) iJoin +{ + return [joins indexOfObjectIdenticalTo:iJoin]; +} + +#pragma mark Some general methods: +- (BOOL) isEqual:(id) iObject +// Equal to another attribute, if they have the same name and same class description. +// Equal to a string (NSString), if the name of the attribute is equal to the string. +{ + if ([iObject isKindOfClass:[MCPAttribute class]]) { + MCPAttribute *theAttribute = (MCPAttribute *) iObject; + + return ([name isEqualToString:[theAttribute name]]) && ([classDescription isEqual:[theAttribute classDescription]]); + } + if ([iObject isKindOfClass:[NSString class]]) { + return [name isEqualToString:(NSString *)iObject]; + } + return NO; +} + +#pragma mark For debugging the retain counting +- (id) retain +{ + [super retain]; + return self; +} + +- (void) release +{ + [super release]; + return; +} + +@end + +@implementation MCPAttribute (Private) + +- (void)setValueClassName:(NSString *) iClassName +{ + if (NSClassFromString(iClassName) != valueClass) { + [self setValueClass:NSClassFromString(iClassName)]; + } +} + +@end |